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| 1 # 2009 April 20 | |
| 2 # | |
| 3 # The author disclaims copyright to this source code. In place of | |
| 4 # a legal notice, here is a blessing: | |
| 5 # | |
| 6 # May you do good and not evil. | |
| 7 # May you find forgiveness for yourself and forgive others. | |
| 8 # May you share freely, never taking more than you give. | |
| 9 # | |
| 10 #*********************************************************************** | |
| 11 # | |
| 12 # Test cases inspired by ticket #3811. Tests to make sure that | |
| 13 # the journal_mode can only be changed at appropriate times and that | |
| 14 # all reported changes are effective. | |
| 15 # | |
| 16 # $Id: jrnlmode3.test,v 1.5 2009/04/20 17:43:03 drh Exp $ | |
| 17 | |
| 18 set testdir [file dirname $argv0] | |
| 19 source $testdir/tester.tcl | |
| 20 | |
| 21 ifcapable {!pager_pragmas} { | |
| 22 finish_test | |
| 23 return | |
| 24 } | |
| 25 | |
| 26 # | |
| 27 # Verify that journal_mode=OFF works as long as it occurs before the first | |
| 28 # transaction, even if locking_mode=EXCLUSIVE is enabled. The behavior if | |
| 29 # journal_mode is changed after the first transaction is undefined and hence | |
| 30 # untested. | |
| 31 # | |
| 32 do_test jrnlmode3-1.1 { | |
| 33 db eval { | |
| 34 PRAGMA journal_mode=OFF; | |
| 35 PRAGMA locking_mode=EXCLUSIVE; | |
| 36 CREATE TABLE t1(x); | |
| 37 INSERT INTO t1 VALUES(1); | |
| 38 SELECT * FROM t1; | |
| 39 } | |
| 40 } {off exclusive 1} | |
| 41 do_test jrnlmode3-1.2 { | |
| 42 db eval { | |
| 43 BEGIN; | |
| 44 INSERT INTO t1 VALUES(2); | |
| 45 ROLLBACK; | |
| 46 SELECT * FROM t1; | |
| 47 } | |
| 48 } {1 2} | |
| 49 | |
| 50 db close | |
| 51 file delete -force test.db test.db-journal | |
| 52 sqlite3 db test.db | |
| 53 | |
| 54 do_test jrnlmode3-2.1 { | |
| 55 db eval { | |
| 56 PRAGMA locking_mode=EXCLUSIVE; | |
| 57 PRAGMA journal_mode=OFF; | |
| 58 CREATE TABLE t1(x); | |
| 59 INSERT INTO t1 VALUES(1); | |
| 60 SELECT * FROM t1; | |
| 61 } | |
| 62 } {exclusive off 1} | |
| 63 do_test jrnlmode3-2.2 { | |
| 64 db eval { | |
| 65 BEGIN; | |
| 66 INSERT INTO t1 VALUES(2); | |
| 67 ROLLBACK; | |
| 68 SELECT * FROM t1; | |
| 69 } | |
| 70 } {1 2} | |
| 71 | |
| 72 # Test cases to verify that we can move from any journal_mode | |
| 73 # to any other, as long as we are not in a transaction. Verify | |
| 74 # that we cannot change journal_mode while a transaction is active. | |
| 75 # | |
| 76 set all_journal_modes {delete persist truncate memory off} | |
| 77 set cnt 0 | |
| 78 foreach fromjmode $all_journal_modes { | |
| 79 foreach tojmode $all_journal_modes { | |
| 80 | |
| 81 # Skip the no-change cases | |
| 82 if {$fromjmode==$tojmode} continue | |
| 83 incr cnt | |
| 84 | |
| 85 # Start with a fresh database connection an empty database file. | |
| 86 # | |
| 87 db close | |
| 88 file delete -force test.db test.db-journal | |
| 89 sqlite3 db test.db | |
| 90 | |
| 91 # Initialize the journal mode. | |
| 92 # | |
| 93 do_test jrnlmode3-3.$cnt.1-($fromjmode-to-$tojmode) { | |
| 94 db eval "PRAGMA journal_mode = $fromjmode;" | |
| 95 } $fromjmode | |
| 96 | |
| 97 # Verify that the initial journal mode takes. | |
| 98 # | |
| 99 do_test jrnlmode3-3.$cnt.2 { | |
| 100 db eval {PRAGMA main.journal_mode} | |
| 101 } $fromjmode | |
| 102 | |
| 103 # Start a transaction and try to change the journal mode within | |
| 104 # the transaction. This should fail. | |
| 105 # | |
| 106 do_test jrnlmode3-3.$cnt.3 { | |
| 107 db eval { | |
| 108 CREATE TABLE t1(x); | |
| 109 BEGIN; | |
| 110 INSERT INTO t1 VALUES($cnt); | |
| 111 } | |
| 112 db eval "PRAGMA journal_mode=$tojmode" | |
| 113 } $fromjmode | |
| 114 | |
| 115 # Rollback the transaction. Verify that the rollback occurred | |
| 116 # if journal_mode!=OFF. | |
| 117 # | |
| 118 do_test jrnlmode3-3.$cnt.4 { | |
| 119 db eval { | |
| 120 ROLLBACK; | |
| 121 SELECT * FROM t1; | |
| 122 } | |
| 123 } [expr {$fromjmode=="off"?$cnt:""}] | |
| 124 | |
| 125 # Now change the journal mode again. This time the new mode | |
| 126 # should take. | |
| 127 # | |
| 128 do_test jrnlmode3-3.$cnt.5 { | |
| 129 db eval "PRAGMA journal_mode=$tojmode" | |
| 130 } $tojmode | |
| 131 | |
| 132 # Do a the transaction. Verify that the rollback occurred | |
| 133 # if journal_mode!=OFF. | |
| 134 # | |
| 135 do_test jrnlmode3-3.$cnt.6 { | |
| 136 db eval { | |
| 137 DROP TABLE IF EXISTS t1; | |
| 138 CREATE TABLE t1(x); | |
| 139 BEGIN; | |
| 140 INSERT INTO t1 VALUES(1); | |
| 141 } | |
| 142 db eval ROLLBACK | |
| 143 db eval { | |
| 144 SELECT * FROM t1; | |
| 145 } | |
| 146 } [expr {$tojmode=="off"?"1":""}] | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 finish_test | |
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Chromium Code Reviews
Issue 3108030:
Move bundled copy of sqlite one level deeper to better separate it... (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/